Seconded - I worked for the neighbouring council to S****horpe at the time Tony B. Liar was giving out wads of cash to schools to get them online. Internet filtering was a big concern as there's nothing teenagers would like more than unfettered access to the kind of pictures they previous had to scour hedges/older siblings bedrooms for. A senior member of staff wondered whether there may even be a way to filter pictures based on their content, but this was the 1990's and things weren't that sophisticated - he wondered if we might have been able to block pictures which featured a large amount of pink, but clearly there'd be a lot of false positives, never mind introducing racial bias...